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190722 (2001 ON39)
Classification: Main-belt Asteroid          SPK-ID: 2190722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816995611062071 4.8755e-08  
a 2.309888609792723 1.0083e-08 au
q 1.890182863189158 1.1273e-07 au
i 6.221037444258299 3.9697e-06 deg
node 86.7319615178093 4.7159e-05 deg
peri 285.927420963404 4.8713e-05 deg
M 155.6981623861167 1.4829e-05 deg
tp 2458645.917745441205
(2019-Jun-11.41774544)
5.0896e-05 TDB
period 1282.286242698576
3.51
8.3963e-06
2.299e-08
d
yr
n .2807485474088678 1.8383e-09 deg/d
Q 2.729594356396288 1.1915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      10231 days (28.01 yr)  
   first obs. used      1993-04-15  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:03  

Additional Information
 Earth MOID = .900846 au 
 Jupiter MOID = 2.7524 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457404.5 (2016-Jan-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822890319563067 4.9e-08  
q 1.888678752183378 1.1341e-07 au
tp 2457361.665449829223
(2015-Dec-05.16544983)
4.6729e-05 TDB
node 86.80313881250028 4.723e-05 deg
peri 285.4601206957653 4.8744e-05 deg
i 6.217538057239031 3.9667e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      10231 days (28.01 yr)  
   first obs. used      1993-04-15  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:03  

Additional Information
 Jupiter MOID = 2.7524 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.401039719159293E-15 -5.542426454304819E-15 -7.809141388340735E-13 4.657621119249741E-14 -2.048021505317173E-13 -1.341261301422906E-15
q -5.542426454304819E-15 1.286198684653669E-14 1.952118878893663E-12 -1.091525937179663E-13 5.116621702882766E-13 3.28276553950806E-15
tp -7.809141388340735E-13 1.952118878893663E-12 2.183630071609148E-9 -2.174673440565052E-11 5.941297698185788E-10 2.132409226604287E-12
node 4.657621119249741E-14 -1.091525937179663E-13 -2.174673440565052E-11 2.230700034195145E-9 -2.22262890272836E-9 1.540979180328231E-11
peri -2.048021505317173E-13 5.116621702882766E-13 5.941297698185788E-10 -2.22262890272836E-9 2.376013482092622E-9 -1.474566207998893E-11
i -1.341261301422906E-15 3.28276553950806E-15 2.132409226604287E-12 1.540979180328231E-11 -1.474566207998893E-11 1.573432993421018E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.38   n/a MPCxxxxx  

190722 (2001 ON39)          Discovered 2001-Jul-20 by NEAT at Palomar
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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